This study aimed to clarify the nulliparous teenager's knowledge about the work labor and the birth. It was realized a qualitative research with twelve teenagers, between 12 and 16 years old, who lived around a Health Unit in Mossoró-RN. The results showed that the teenagers have lack of knowledge about the work labor, and the information was permeated by myths and it shows an unarticulated concepts that can transform existing knowledge. Therefore, it is highlighted the need of connecting the teenagers with the sexuality issue, particularly with work labor and pregnancy. It is necessary to allow the teenagers to analyze and decide about the best way to have babies, identifying possibilities to a humanized and healthier work labor. Thus, it is imperative that the health workers, specially the nurses, should develop socioeducated activities introducing the knowledge about the work labor linked with school and family. This can develop the empowerment process into teenagers about the best work labor type, contributing to eliminate the stigmas about the sexuality and work labor in the society.